20674080

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{293}}^1$

素因数の和:328

約数の個数: 216

約数和(自身を含む): 82348812

約数和(自身を除く): 61674732

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 280, 288, 293, 294, 315, 336, 360, 392, 420, 441, 480, 490, 504, 560, 586, 588, 630, 672, 720, 735, 784, 840, 879, 882, 980, 1008, 1120, 1172, 1176, 1260, 1440, 1465, 1470, 1568, 1680, 1758, 1764, 1960, 2016, 2051, 2205, 2344, 2352, 2520, 2637, 2930, 2940, 3360, 3516, 3528, 3920, 4102, 4395, 4410, 4688, 4704, 5040, 5274, 5860, 5880, 6153, 7032, 7056, 7840, 8204, 8790, 8820, 9376, 10080, 10255, 10548, 11720, 11760, 12306, 13185, 14064, 14112, 14357, 16408, 17580, 17640, 18459, 20510, 21096, 23440, 23520, 24612, 26370, 28128, 28714, 30765, 32816, 35160, 35280, 36918, 41020, 42192, 43071, 46880, 49224, 52740, 57428, 61530, 65632, 70320, 70560, 71785, 73836, 82040, 84384, 86142, 92295, 98448, 105480, 114856, 123060, 129213, 140640, 143570, 147672, 164080, 172284, 184590, 196896, 210960, 215355, 229712, 246120, 258426, 287140, 295344, 328160, 344568, 369180, 421920, 430710, 459424, 492240, 516852, 574280, 590688, 646065, 689136, 738360, 861420, 984480, 1033704, 1148560, 1292130, 1378272, 1476720, 1722840, 2067408, 2297120, 2584260, 2953440, 3445680, 4134816, 5168520, 6891360, 10337040, 20674080]

約数ペア:

[(1, 20674080), (2, 10337040), (3, 6891360), (4, 5168520), (5, 4134816), (6, 3445680), (7, 2953440), (8, 2584260), (9, 2297120), (10, 2067408), (12, 1722840), (14, 1476720), (15, 1378272), (16, 1292130), (18, 1148560), (20, 1033704), (21, 984480), (24, 861420), (28, 738360), (30, 689136), (32, 646065), (35, 590688), (36, 574280), (40, 516852), (42, 492240), (45, 459424), (48, 430710), (49, 421920), (56, 369180), (60, 344568), (63, 328160), (70, 295344), (72, 287140), (80, 258426), (84, 246120), (90, 229712), (96, 215355), (98, 210960), (105, 196896), (112, 184590), (120, 172284), (126, 164080), (140, 147672), (144, 143570), (147, 140640), (160, 129213), (168, 123060), (180, 114856), (196, 105480), (210, 98448), (224, 92295), (240, 86142), (245, 84384), (252, 82040), (280, 73836), (288, 71785), (293, 70560), (294, 70320), (315, 65632), (336, 61530), (360, 57428), (392, 52740), (420, 49224), (441, 46880), (480, 43071), (490, 42192), (504, 41020), (560, 36918), (586, 35280), (588, 35160), (630, 32816), (672, 30765), (720, 28714), (735, 28128), (784, 26370), (840, 24612), (879, 23520), (882, 23440), (980, 21096), (1008, 20510), (1120, 18459), (1172, 17640), (1176, 17580), (1260, 16408), (1440, 14357), (1465, 14112), (1470, 14064), (1568, 13185), (1680, 12306), (1758, 11760), (1764, 11720), (1960, 10548), (2016, 10255), (2051, 10080), (2205, 9376), (2344, 8820), (2352, 8790), (2520, 8204), (2637, 7840), (2930, 7056), (2940, 7032), (3360, 6153), (3516, 5880), (3528, 5860), (3920, 5274), (4102, 5040), (4395, 4704), (4410, 4688)]